Home / 7,333.60-10,120.36-3,976.40

Finding the Fourth Proportional to 7,333.60, 10,120.36 and 3,976.40

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Solution

The fourth proportional to 7,333.60, 10,120.36 and 3,976.40 is: 5,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,333.60 : 10,120.36 = 3,976.40 : x
  2. Step 2: Convert to fraction form
    7,333.60/10,120.36 = 3,976.40/x
  3. Step 3: Cross multiply
    7,333.60x = 10,120.36 × 3,976.40
  4. Step 4: Simplify right side
    7,333.60x = 40,242,599.50
  5. Step 5: Solve for x
    x = 40,242,599.50/7,333.60
  6. Step 6: Final answer
    x = 5,487.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.